LADP-2 Experimental System of Pulsed NMR Featured Image

LADP-2 Kev Tshawb Fawb Txheej Txheem ntawm Pulsed NMR

Cov lus piav qhia luv luv:

Khoom Nthuav dav

Cov khoom lag luam

Pulsed Fourier transform nuclear magnetic resonance siv pulsed RF teb los ua lub zog nuclear los saib cov lus teb ntawm lub nuclear system rau cov mem tes, thiab siv cov khoom siv Fourier hloov ceev sai sai (FFT) thev naus laus zis los hloov lub sijhawm sau cov teeb liab mus rau zaus zaus teeb liab, uas yog sib npaug rau ntau zaus ib nthwv dej nruam nuclear sib nqus resonance spectrometers zoo siab rau tib lub sijhawm, yog li ntawd cov nuclear sib nqus resonance qhov tshwm sim tuaj yeem pom nyob rau hauv ntau yam, thiab cov teeb liab tseem ruaj khov tam sim no, txoj kev siv mem tes siv feem ntau NMR spectrometers, thaum tus qauv ntsuas mem tes siv hauv MRI.

Kev sim

1. Nkag siab lub tswv yim kev tawm dag zog lub cev thiab kev sim teeb tsa ntawm PNMR system. Kawm los piav qhia qhov muaj feem ntawm cov kev tshwm sim hauv PNMR siv cov qauv vector.

2. Kawm siv cov cim ntawm lub suab ncha (SE) thiab kev siv hluav taws xob dawb (FID) los ntsuas T₂(saws kiv kiv-lub sijhawm). Tshawb cov cawv ntawm kev sib nqus ntawm hom kev sib nqus ntawm NMR teeb liab.

3. Kawm los ntsuas T₁ (tig sij hawm so kom txaus lub sijhawm) siv kev thim rov qab.

4. Cov peev txheej nkag siab zoo txog qhov kev ua kom so, saib cov nyhuv ntawm paramagnetic ions ntawm lub sijhawm so nuclear.

5. Ntsuas T₂ntawm tooj liab sulfate daws ntawm ntau qhov sib txawv. Txheeb xyuas qhov sib txawv ntawm T₂ nrog rau kev hloov pauv ntawm kev xav.

6. Ntsuas cov kwv yees cov tshuaj hloov mus rau hauv tus qauv.

Cov Lus Qhia Tshwj Xeeb

Kev piav qhia	Cov Lus Qhia Tshwj Xeeb
Lub zog mov ntawm cov teb cov tes taws los piav	siab tshaj tam sim no 0.5 A, voltage kev tswj hwm 0 - 6.00 V
Lub zog muab hluav taws xob homogenous teb	siab tshaj tam sim no 0.5 A, voltage kev tswj hwm 0 - 6.00 V
Oscillator zaus	20 MHz
Sib nqus muaj zog	0.470 T
Sib nqus ncej	100 hli
Sib nqus nyob deb li cas	20 hli
Sib nqus homogeneity	20 ppm (10 hli × 10 hli × 10 hli)
Tswj tau kub	36.500 ° C
Sib nqus ruaj khov teb	4 teev sov yuav tsum tswj kom ruaj khov, Larmor zaus nqus dej tsawg dua 5 Hz ib feeb.

Daim Ntawv Npe

Kev piav qhia	Qty	Lus khaws xav
Kev ntsuas kub tsis tu ncua	1	suav nrog cov hlau nplaum thiab ntsuas kub tswj kev ntsuas
RF Cov Khoom Uas Muaj Xov Tooj	1	suav nrog lub zog hluav taws xob ntawm tes taws los piav
Kos Npe Txais Lus Txais Lus	1	suav nrog lub zog hluav taws xob ntawm homogenous teb thiab ntsuas kub
Lub Hwj Chim Qaum	1
Ntau Cable	12
Qauv Ntses	10
Ntawv Qhia Ntawv Qhia	1